Started getting some signs of light stress, so I moved the light up as far as I could. It's about 16 inches from the bud sites in the center at net level, and about 7 inches from the taller colas that aren't directly under the light. Definitely has a bunch of funny leaves. Added another piece of ducting to let more air in when the velcro mesh vents are closed.
Removed the pot riser to get further from the light. About 10 inches from the tallest cola now.